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期刊论文

Prediction of yield of retail cuts for native and crossbred Chinese Yellow cattle

高峰Yinji CHEN Chunbao LI Li LIU Guanghong ZHOU Xinglian XU and Feng GAO

Animal Science Journal (2007) 78, 440-444,-0001,():

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摘要/描述

Seven hundred and three native and crossbred Chinese Yellow cattle (mean live weight: 523 38 kg) were slaughtered, chilled and segmented. The hot carcass weight (HCW, kg), fat thickness (FT, cm) and rib eye area (REA, cm2) were measured to predict weights and percentages of beef cattle retail cuts. A correlation analysis showed that the HCW and REA were positively correlated with the weights of the total retail cuts (TRC, kg), top grade retail cuts, prime retail cuts and percentage of total carcass weight. A regression analysis indicated that HCW and REA were the best predictors for the weight of total retail cuts (Y=-16.71+0.382 HCW+0.593 REA), and the HCW explained more of the variation than REA. Meanwhile, HCW and REA accounted for 62% of the variation of percentage of total retail cuts (Y=43.24-0.025 HCW+0.170 REA), whereas the REA was more valuable than the HCW. The FT contributed little in estimating weight or percentage of retail cuts.

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